The 39 Clues: Cahills vs. Vespers

The Medusa Plot - The 39 Clues: Cahills vs. Vespers, Book 1 (Unabridged)

Gordon Korman

A King's Ransom - The 39 Clues: Cahills vs. Vespers, Book 2 (Unabridged)

Jude Watson

The Dead of Night - The 39 Clues: Cahills vs. Vespers, Book 3 (Unabridged)

Peter Lerangis

Shatterproof - The 39 Clues: Cahills vs. Vespers, Book 4 (Unabridged)

Roland Smith

Trust No One - The 39 Clues: Cahills vs. Vespers, Book 5 (Unabridged)

Linda Sue Park

Day of Doom - The 39 Clues: Cahills vs. Vespers, Book 6 (Unabridged)

David Baldacci